Window holder



July 6, 1937. M, RICHARDSON 2,086,436

WIN

DOW HOLDER Filed NOV. 23, 1956 3 Sheets-Sheet l 7 '9 M14 July 6, 1937. M. RICHARDSON WINDOW HOLDER Filed Nov. 23, 1936 3 Sheets-Sheet 2 INVENTOR ATTORNEYS July 6, 1937. M. RICHARDSON I 2,085,436

WINDOW HOLDER Filed Nov. 25, 1936 s sheets-sheet 5 l I I I I I I I I I I I I I I I I I I I I I I I l I Aj'TORNEYs Patented July 6, 1937 UNITED STATES PATENT OFFIE 3 Claims.

This invention relates to sash and casement construction for windows and counterbalances therefor and has for the primary object the provision of means which will eliminate the use of the conventional counterbalance weights and troughs therefor and permits the window casement to be constructed on a smaller scale and more economically and permit easy manual raising and lowering of the sash and will maintain the sash against accidental movement when manually released.

With these and other objects in view this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which Figure 1 is a front elevation illustrating a window construction in accordance with my invention.

Figure 2 is a sectional view taken on the line 22 of Figure 1, showing the construction of the casement and the sashes slidab'le therein and equipped with counterbalancers.

Figure 3 is an enlarged fragmentary sectional View similar to Figure 2 showing in detail one of the counterbalancers.

Figure 4 is a sectional View taken on the line 44 of Figure 3.

Figure 5 is a fragmentary horizontal sectional view.

Figure 6 is a detail view showing the counterbalancer detached from the window sash and casement.

Figure '7 is a detail sectional view taken on the line 'l'l of Figure 6.

Referring in detail to the drawings, the numeral l indicates a metallic casement slidably supporting upper and lower sashes 2 and 3, the lower sash being equipped with hand grips 4 to facilitate easy manual raising and lowering of the sash. The vertical portions of the easement are of hollow formation closed by removable strips 5. The vertical hollow portions of the casement provide chambers 6 in which operate counterbalancers l and the latter are connected to the sashes for maintaining the sashes in any of their positions and which will permit manual raising and lowering of the sashes when desired. The counterbalancers I and their connection to the sashes are such as to require only a limited space for their accommodation therefore permitting construction of the casement I on a very much smaller scale than heretofore possible when the conventional type of counterbalance weights are employed. The chambers 6 are slotted in the direction of the sashes to permit connecting of the latter with the counterbalancers and so that 5 said counterbalancers may slide vertically in either direction with the vertical sliding movement of the sashes.

The counterbalancers each consists of an elongated member or plate 8 and having integral 10 therewith an angularly disposed attaching portion 9 apertured to receive screws or like fasteners for securing the plate 8 to the window sash while being mounted in the chamber 6 for sliding vertically in either direction with the sash. The attaching portion 9 is located at one end of the plate 8 and provides to the latter a right angularly disposed wall ID. A similar wall I I is located at the opposite edge of the plate 8 and cooperates with the portion H) in slidably supporting one end of a. holding arm l2 which includes sections l3 and I4 pivotally connected, as shown at [5. The section l4 adjacent one end is pivoted to the plate 8, as shown at l6, and its unattached end is shaped to form a dog I! adapted 5 to ride upon a serrated plate 18 secured to one wall of the chamber 6. The pivoted end of the section l3 of the holding arm l4 rides against a wall of the chamber 6 located opposite to the serrated plate 8. The serrations of the plate I8 form to the latter a series of spaced valleys in which the dog l1 engages. A pulley I9 is journaled to the section M of the holding arm l2 adjacent the dog ll and a similar pulley 20 is journaled to the section l3 of the holding arm adjacent the free end of said section l3. A fleXible cable or element 2! is trained over the pulleys l9 and 20 and has one end secured to the top wall of the chamber 6, as shown at 22, while the opposite end of the cable is connected to a plate 23 carrying a bolt 24 slidably mounted to a bracket 25 mounted in the chamber of the casing. The bracket 25 is supported by a wall 26 integral with the easement and apertured to slidably receive the bolt 24 and to form in the chamber a compartment 21. The bolt 24 extends into the compartment and has threaded thereto a nut 28. Interposed between the wall 26 and the nut 28 and surrounding the rod 25 is a coil spring 29 acting to place tension on the flexible element 2|. The action of the spring on the flexible element may be varied by adjusting the nut on the bolt. The tension on the flexible element is sufficient to cause pivotal movement of the sections l3 and M of the holding arms so that they assume a position, as shown in Figure 6, with the dog bearing against the serrations of the plate I 8 and the pivoted end of the section [3 bearing against the wall of the chamber 6 opposite to the serrated 5 plate. The holding arm I2 is thus caused to enage with the serrated plate and the wall of the compartment will retain the sash against accidental movement in any of its positions when manually released'but which will permit the sash 10 to be readily moved upwardly or downwardly manually. A guide is provided on the plate 8 tocooperate with the portions l and H in slidably supporting the section i 3 of the holding arm to said plate 8. The compartment 2'! of the cham- 15 ber 6 is provided with a removable cover 36 so that access may be had to the compartment for the purpose of adjusting the nut on the bolt to vary the tension on the cable 2|.

Having described the invention, I claim: 20 1. In combination with a window casement having a chamber and a slidable sash, a plate secured to the sash ands'lidablein the chamber, a holding arm pivotally and slidably connected to said plate and including pivotally connected sec- ;25 tions each bearing against a wall of the chamber, a flexible element secured to the casement and slidably connected to the sections of the holding element, and spring means connected to the flexible element to place tension thereon and thereby effect pivotal movement to the sections of the having a chamber and a slidable sash, a plate secured to the sash and slidable in the chamber, a holding arm pivotally and slida-bly connected to said plate and including pivotally connected sections each bearing against a wall of the chamber, 5 a flexible element secured to the casement and slidably connected to the sections of the holding element, and adjustable spring means connected to the flexible element to place tension thereon and thereby effect pivotal movementto the sec- 10 tions of the holding arm to engage with the walls of the chamber with sufficient force to maintain the sash against accidental movement.

3. In combination with a window casement having a chamber and a slidable sash, a plate slidable in the chamber and connected with the sash, a holding arm pivoted to the plate adjacent one end and having its opposite end slidably secured to said plate and including pivotally connected sections, one end of said arm shaped to form a dog, a serrated'plate secured to a wall of the chamber to be engaged by the dog with the pivotal end of one of the sections of the arm contacting with a Wall opposite to the serrated plate, pulleys secured to the sections of the holding arm, a flexible element trained over the pulleys and having one end secured to a wall of the chamber, and an adjustable spring means connected to the other end of theflexible element and carried by the casement to place the flexible element under a desired tension for effecting pivotal movement of the sections of the holding arm to bring about holding of the sash in any of its positions.

MACK RICHARDSON. 

